Share Email Print
cover

Proceedings Paper

Image enhancement by nonlinear extrapolation in frequency space
Author(s): Hayit Greenspan; Charles H. Anderson
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A procedure for creating images with higher resolution than the sampling rate would allow is described. The enhancement algorithm augments the frequency content of the image using shape-invariant properties of edges across scale by using a non-linearity that generates phase- coherent higher harmonics. The procedure utilizes the Laplacian pyramid image representation. Results are presented depicting the power-spectra augmentation and the visual enhancement of several images. Simplicity of computations and ease of implementation allow for real-time applications such as high-definition television.

Paper Details

Date Published: 23 March 1994
PDF: 12 pages
Proc. SPIE 2182, Image and Video Processing II, (23 March 1994); doi: 10.1117/12.171057
Show Author Affiliations
Hayit Greenspan, California Institute of Technology (Israel)
Charles H. Anderson, Washington Univ. School of Medicine (United States)


Published in SPIE Proceedings Vol. 2182:
Image and Video Processing II
Sarah A. Rajala; Robert L. Stevenson, Editor(s)

© SPIE. Terms of Use
Back to Top